Motor-driven mechanism for self-acting switches.



C. S. EPPLEY.

MOTOR DmvEN MECHAMSM FOR SELF ACTING SWITCHES.

Patented Jan. 14, 1919.

3 SHEETS-SHEET I- C. S. EPPLEY. MOTOR DHVEN MECHNISM FOR SELF ACTING SWHCHES.

APPLlATxoN FILED nc.2, 1.917.

,291,451 atente Jam. 14', i919.

,6 J l fr .A M': 6 fi 3 SHEETS-SHEET 2.

c1 8,'15PPLEY.

MOTOR DRIVEN MECHANISM FORSELF .ACTING SWITCHES,

APPLlcMloN FILED 1151;.28, 1911.

@Ww-jaw I ff 1 i taiiisto make vand useV thesame.

patent issued Novemb'erl'fi, 1916'. to C.-S.

of the 'rails andthe switch pointin section,

UNITED sTATEs PATENT oEEIoE. ,y y CHARLESk SQEPPLEY, or ',Yoiaii, PENNSYLVANIA, AssI'GNoB. 'ro SELEACTING SWITCH co., or YORK, PENNSYLVANIA, A coRPOEATroN. i

MoTOBfnRIvENiviEcHANIsM ron SELEACTI'NGSWITQHES. i 1 jf To all 'inkom t may 'concern :v

y Be it known that I, CHAnnEsS EPPLEn Motor-Driven ivleclianism for r"Self-Acting Switches; and I do-'herebyde'clare the 'fol* lowing to b e a'full, clear, yand 'exact description of thel invention, such as will enable others skilled in fthe art to 'which it apper- This Vinvention mel'atesv 'to an s improved 'motor driven mechanism .for fself tfa'cting switches, an'd one of the'i'objects of 'the invention is `to provide -a'mechanism ofthis kind that is 4strictly 'posi-tive vin yits Jaction and is `aautcin-atically controlled 'by `the motorinan y when operating 'the t controlling handle of the control box.

cal and posit-ive the switch operatingrnechanism speci-fied, illustrated and claimed in the Eppley, Patent No. "1,205,134.

A further objectof the invention `is' to provide a'motor :drivenmechani'sm lof this kind which is a`d`ap-ted to installed in circuit with kthe :electrical energy "of vthe car and 4its "source of supply, whereby, as

the motorman operates far/manipulates the f controller handle, said mechanism isput vin action, which in -t'urn automatlcaily "throws `the switch.

During the installation of the f mechanism of the aforesaidv patent, it was found that the Switchpoint was toow quick ,in its `action when thrown, in which `case the'slush or waterv surrounding' the kswitch fpo-int lduring bad weather would'be thrwn"or"'splaslred,

which is 'obnoXiou-s' to` the foot, and .particu-` larly ob'jectional owing to splashing the wearing apparel of pedestrians, particularly iadiesdresses.' .t t. t Y A further object rof the invention 1s Yto providefa motor driven`mech`anismv of this kind having improved 'means connecting the motor ofl said mechanism andthefswitch .ipoint, whereby vtheultimate `powervfdei'i'ved from the quick operating inotris reduced 'in speed yo-rfa'ction, vsofastov .eliminate the quick operation of the yswitch point, andV f consequentlyovercome the splashingofglthe slush. i

Specification of Letters Patent.

A further 'object of` 'the vinvention 'is Ato improve, simplify, and render more, practilFig- Bis an Patented Jan. 14,1919.

LApiiiiemitir` ined December 2s, 1917. serial No. 209,288.

' A further object of the inventionisfthe provision of` a motor driven V.mechanism turn has an eccentric connection with` yieldablermeans of ya switch actuating rod, for

- gear connections subsequently tofth-rowing thefswitch point. i Y

' In practicaliieljds-` the details of lconst-ruc- Ition may necessitate` alterations4 falling within the scope of what is claimed. The invention comprisesy further features and combination of parts as hereinafter set 'having'reducinggear connections,lwhich in forth shown in the drawings and claimed.V

In the drawings'f n l p .v f kFigure 1 is a diagrammatic view showing the application of themotor driven switch mechanism in *circuit with the electrical lenergy of the car. t Y

Fig. 2 is a detail sectional view of one and .showing the casing Yofl tlieumechanism, (which is connected to the switch` point)` in elevation.

enlarged Y ofl 'the mechanism showing thetopfplateof the lcasing broken away, `and various parts of the 'mechanism vin elevation and parts in Y section.` v l Fig; i `is Aa sectional view online 4 4" Yofligz. Y, g, Fig. 5 is a sectional view Online 5- 5 of Fig.3. Y. j

Fig. 6 is a vsectional viewon line of Referring more; especially toy drawingsY 1 designates fajcasing,-jwhichmay be, zany suitable shape ory configuration, Y and.. which they side of-one of the 'rails 2 ,fprefferably may be fastened vin any suitable manner to and-2 ngltudinal Y y ribs 7 and cavities 8, in order to avoidv a divides, the casing inl two compartments and 11. The wall 9merges into an extension wall 12, which is' of the general shape as shown, which consequently causes tobe' formed or constructed an elongated pocket 13, for the purpose to Vappear. as the speciication proceeds. l VA suitable plate 14 is secured by bolts15 to the bottom ofthe Vcompartment 10, and rising upwardly fromk this plate are'bearings 16, 17 and18. Mounted inthe bearings 16 is a shaft 19. provided with a gear clutch`20 rigidly fixed` at one Vend. On its' other endv a pinion V21 is fixed.

j Thepartitionor wall 9 has an opening 22,

in vwhich a portion of aplate '23l extends.`

This plate issecured by. bolts24to' the'wall l9, and is providedwith -a packing gland. or

box 25. VMounted. inthepacking lglandv or` boxl` is a: shaft'26, which is alined axially with the shaft 19. A gear clutchcollar is` keyedby means'of a pi'n27 kto one end of movewith said shaft 26 when'it is operated axially. Thisgear clutch collar 28 is designed to mesh with the, teethrof the4 gear clutch 20, so thatthe-two shafts 119 and `26- `may rotate togetherv axially. This Vgear clutch-collar 28 has ay reduced part 29, surrounding .which is a loosely ittingr collar` 30, which is 'provided 7with 'diametrically 'oppo-Y sitely disposed pins '31. Mounted in the `bearings 1,8.' is alshaft ,32. on which a-wormV "33 is keyed, andon which shaft at one: endif a spur gear 34 Vis keyed, `.This spurgear 34 meshes with the pinion 21. Al shaft185`s journaledl in the bearings 17, and fixed' to y and-l rotatable with the shaft 85 iis aworm l Wheel 36,v with which the Worin 33 meshes.r A collar 37 -is loosely mounted on thefshaftf 35, and one face of the worm wheel-ibas an enlargementy 38 which is'circular. Projecting inwardly from the wall`9 is afpair' of 4 spaced ears 39, in Vwhich a pin40isfmounted. Rckablymounted upon the pin 4,0V is sleeve 41, and'projecting radially from the i so that when 'the sleeve'41 is rocked vinone J projects 'from' the sleevey 41sv in a ydirection at right angles toA the arms 342,. One ,edge

i l. of the Aarr'n44atits'end is notchedas'shown at`f45,1and whichnotched enduoverliesthe face i of the.; cireillarg'enlargement 38;; {The i'V `enlargementiS'hasafnotch 46.- Agspring47 connects lthe:collarf"87 'and'. one Vof accomplishedaftermath@ no he `e1/.frise The end ywall of `the compartment 10`of the casing l haspafpacking gland orfbox 58, in Whichiarodv) is guided. This rod 59 is iin Yturn connected'at 60 to` one` of the switch f points 61..y Afro-d 62 is provided and has its a Aendy portions threaded. y,One end of the rod the shaft 26, so vasto rotate therewith, or A Yhave been once adjusted. t "3551s rotated inthe direction of the arrow b 1 thek i ters With-l the end of the arm 44, said rarms 42 are moved in the direction of the arrow a againsty the actionv ofthe spring 47, conseqfuently causing the Vend of theV arm 44 to engage the notch 46, vrwhich will hold the Worm wheel'and its shaft againstfurther rotation. Keyed byv means of a feather key 48 to one''end of the shaft 35 is an eccentric 49, which isl provided with an eccentric ring 50. This 'ring 50 has a radially eX- 75 tending arm 51. s LThe inner face :of one of the side walls of the casing 1 has a threaded ally connected tol theend of the arm 51 of the eccentricring, there being cotter pins 56 Ato prevent axial `movement of the pivot pin 55. The lever 54 has aforked extension 57.

62 has `tn/enlargement 68 which is hollow,

`and it'loosely fits .over an enlargement 64 of the. inner end of the` rod 59, there being ing'the threaded ends of the rod 62 are nuts 67, and surrounding `the rod and interme=100 diatethenuts 67 are coil springs' 68 and 69. The forked extension 57 of the lever 54 straddles the Arod, 62. intermediate kthe adj acent endsxof saidgsprings 68. and 69. i A pin 70 engages the vforks .of the extension57to prevent excessive displacement of the Arod V62,y VBY; adjusting the nuts` 67fthe tension ofthefsprings 68 and--69 may be increased or ,.decreased, there being lock-V nuts 71 on vthe rod 62: tolo'ck7 the nuts 67 after they y110 When the' shaft veryjslowly ('whichiis accomplished owing ,to the reduced gearconnections with the y l j j, ,shaft 26, .whichis rapidly rotated),the ectremities of whichf'arey forked', to; looselyr engagev thefpins orl lugs -31 of the-collar 80,

centric 49 isI operated, which imparts move- Vment jto -theflever 54 through .thelmedium .of the radial arm -51 of the eccentric ring 50. direction, fthe gear y,clutch collar 2,8` 4'and' its i Y shaft kv26nniy" bef'moved axially. An arm 44- TheYo'scillating` of the lever 54 in turn imparts' movement ,to the rods 59 and 62 owing 120 kto thewyieldable connections. whichV is turn ywill operate thefswitch. point.l A suitable electric VVI`notorr72 hasitsbase mounted on theubottom. of the compartment 11, "andkeyed tothe shaftof this. motor as showny at'73 125 j aiibod'y member 74'.l VThe bore'ofthis body member 2 74' axiallygfand telescopically rej ceifveslone'end yofthe shaft 26;. This shaftr L` 26,;by means of the vfeather keyr 5 is `keyed' Yto*rotate.wtlibutLtelescopically slide into the body rneiribei74.V The body member :is

provided y'with diametrically oppositely disposed arms 76 arranged inpairs, the arms of each pairbeing spaced.y 'A collar 77 is formed integral lwith Ythe lshaft 26 and is provided with an annular groove 7 8 semicircular in cross section. vThe arms 76 of ea'chppair overlie the'collar 77. 'Bell crank Y members 9 are pivotally mounted bymeans of pins inthe pairs of arms'76 respectively. One arm of each bell crankmember 79 terminates in a Weight,y 8.1, while the other arm is ormedinto'a spherical 'knub 82. These *knubs 82 engage the fannular groove 78 of the collar 77. When electrical energy from any suitable source is 'furnished the motor 72, its shaft is. rotated, and through kc'entrif'l'igal force, the weighted bell crank members n are thrown f outwardly on their pivots, 'and by the rocking movement ef the bellcrank members,y since y,their knubs 82 engage .the groove of the collar 77, the shaft126 is given an axial movement, which "win disengage the 'gealciuteh cenar #from- 'the gear clutch 20. As avresult of sufficient yrevolutions of the motorshaft. these above operations Voccur instantly'as the notch 46 registers with the end of the arm`44, at

Which time4 the switch Vpoint "is completely thrown. Wien thejmotor is denergized, the vspring A47( actuates `the arms 42 to restore the shaft 26 'again in clutch with 'the yshaft l19. VWhen v the motor 'is again operated the foregoing operations repeat 'themselves, and as either one of the notches 46 reachthe end yofthe arm 44, the notch as- 'sumes' a yposition, whereby one of its ends is right "adj acent the vend of the arm 44, subsequently toithavin'g lentered the notch, so ktht'it'when pressure is exerted on said arms I4,2 and '44 vby the centrifugal action of the yweighted bell kcrank .lm embers, the extremity ofthe arm will not enter the notch, but

will engage the face vofthe enlargement '38 immediatek adjacent one end of the notch. However, the anges ofthe car wheels may throw kthe switch point when the vcar is moving in Yone direction, owing tothe yieldable connection between the rod 62 and said vlever` 54. kThe motor 72 is in vcircuit with a icon- 1tact by means ofthe wire l84there being va 'resistance coil 85 located inthe wire or @lead 84. A second contact 86 is opposed f to the Contact 83. 'A 'solenoid or magnet 87 is provided, and itscore 88 is provided with an armature 89. By Vmeans rof* awire v90 the magnet or solenoid is electrically `confnected toa contact plate 91. fThis contact 'plate'is-somewhatelongated and is insulated ifrom ythe trolley wire 92 by meansof the, insulation v93.k lThe trolley wire'92 isco'n- 1 nectedfby 'ifneai'isV of a, wire V94to a Vswitch '95,;whi'chl is 'in turn-'connected by a Vwire or Alead 96 to the tcontact -A86.` wire 97 forms a junction 98 with `the wire 96 and fing parts well lubricated) cannot escape.V

As the Atrolley car approaches the switch and the controller handleV or switch .of the controllerbox is operated to close the circuit yof the electrical energy of the car, the trolley wheel rises under the contact plate 91. Current then leaves the power house or other source of supply (not shown) over the trolley Wire 92 to the controller handle or switch 95 through the electric magnet 87 which enerygizes and attracts the armature S9) and to the contact plate 91. .The current passes over the trolley wheel 100 through the trolley pole to the motor of the car and back to the source of supply over one of the rails. The energizing of solenoid and attraction of the armature 89 causes a connection to bemade between the contacts 83 and 86. The current then Hows from ythe source of supply (not shown) over the trolley wire 92 to the junction 98 across contact86 and 83 over the wire tothe resistance 85 over the wire 84to the motor of the track switch thereby operating or `throwing said track switch. YThe current then passes from the switch motor 72 (which yis electrically connected to the rail)V through the rail and thence back to the source ci supply.

The invention'havingbeen set forth what isl claimed as new and useful is :e l

1. In a motor driven mechanism for switches, a revoluble driving member, a switch point, a revoluble driven element, reducingj gear connections between the element and the switch point, means for connecting the member'to theelement, whereby the lat- The cover is held closely in place ico ter is driven by the former and including a a revoluble driven element, gear connections between the switch point and the element, means connecting the member and the element, whereby the latter is driven by the former, and including a link preventing `said connecting means from being prematurely theelectilical energy of the car forV a period of' comparatively short duration for temporarily -actuating the member. f

severed, means fory severing said connecting means, and electrical means 1n circuit with Y' I f 3.1111 a mechanism for 'throwing switches,

-aijevolubleVdriving'memb'er, 'aswitclifpointf i Y i a revcluble driven :elementygeari eennecnens v rarily actuating the member, whereby vthe switch point is thrown,L and means forming a link in said gear connections vforA rendering the connecting means between ythe member and the element positive for a certain period, said last named means including means whereby the last named means is impositive Vat alternate periods, whereby the severing means may sever said connecting means between the member and the element. f

Al. In a mechanism for throwing switches, g

a switch point, a revolubledriven element connectedthereto, a driving member, means axially connecting the member and the element, whereby the latter 'is driven througn the medium of Vthe former, and including a link preventing said connecting means 'from being prematurely severed, means for severing said axially connecting means, and means automatically vactuated for la period of com-y paratively short ,duration for temporarily actuating theV member for throwing the switch point. v l Y 5. In a mechanism for throwing switches, a switch point, a revoluble driven element having reducing gearconnections with the switch point, a driving member, means coupling the member and the element, whereby the latter is driven through the medium of the former, means automatically actuated for a period of comparatively short duration for temporarily-actuating the member Lfor throwing the switch'point,fa device for severing the coupling means, `and means forming a link in said gear connections for actuating said device to uncoupley the-member andthe element. Y r

6. In a mechanism for throwing switches, a switch point, a revoluble driven element having reducing gear connections therewith,

a driving member, means coupling the member and the element, whereby the latter is driven by the former, and meansfor actu- V ating thecoupling means for severingsaid coupling means, whereby said member is uncoupled from the element subsequently Vto throwing the switch,-a tensioned device for holding said member and vthe element de- .Y tachably coupled, Vand means coperating x with the tensioned device to prevent the couf a switch-point, al revoluble driven element,

gear connections and yieldable means cony i, ,ing a link andava' coperative element for pre- 'pling means from being` prematurely; severedi` .y fj f 7 In a mechanism forthrowing switches,

necting the element and 'saidswitch point, a driving member, means detachably coupling themember andthe element, wherebyf the mature-1y severed* Y a latter is driven by the ormenineans orsev- Vering said coupling means, a tension device for holding said memberand the element detachably coupled, and means coperating with the tension device to prevent the coupling means from being prematurely severed.

8. Ina mechanism for throwing switches, `a revoluble driven element, a driving member alined axially therewith, means detachably coupling the member and `the element, .whereby the latterY may be driven by the former, a switch point, gear connections connecting 'the switch point and the element, a vdevice for severing the coupling connections, 80 and ymeansy orminga link in said connections for actuating said device. n n

9. Infa'mechanism for throwing switches, arevoluble driven element, a driving member -alinedaxially therewith', means detachably coupling the Ymember and the element, whereby the latter may be ldriven by the former, a' switch point, gear connections between the switch point and the element, a device,r spring means tensioning said device, a 90 holding member forming a link in said connections, said holding member together with the tension of the spring means acting to hold vthe coupling means positively connected, said holding member having means to permit the `device to be actuated against the action of the spring means.

10. In a mechanism for throwing switches, a revoluble driven element, a driving member alined axially therewith, means detachably coupling the. member and the element, whereby the latter may be driven by `the former, a Switchpoint, gear connectionsbetween the switch pointY andthe element, a device, spring means tensioning said device, a holding member forming a linkin said connections and having diametrically'oppositenotches to y permit the device to enter thereinto when vactuated against the action ofy thelspring means, and means on said driv- 110 ing member actuated by centrifugal force 1 ment whereby the latter is drivenV by the former for -operapningthe` gear means and throwing'the switch point, means for severing said couplingmeans, said coupling means includventing the coupling meansifrom being pre- I action of the `tension device subsequentlyv tov 12. In a motor driven mechanism for switches, a switch point, a drivenelement, a

:lever having connections lwith the switch point, gear means operated by -thefdriven `element,fsaid gear means having an eccentricand strap. connection vwith the lever, a

' motor, a revoluble memberconnectedto and driven'by the shaft ofgthemotor,

means detach-ably coupling the member'and the element whereby ithe-latter is driven 4by kthe former for operatingthe gearm'eansiand throwing the switch gpoint, said' revoluble driving member vvbeing' axially 'movable', and means carriedfby and operative ywith the motor shafty and having connections with the vdriving,member to move it axially to sever the coup-ling means subsequently to throwing the switch point.- Y f -j t 13. /In `a motor driven -mechanism for switches, a switch point',l a driven element, a lever having 'connections'with the-switch` y"point, gear ymeans operated bythe-driven element, saidk gearA means having an eccentric and strap connection with the lever,- a, motor, a revoluble 'y driving memberconnectt ed 'to and drivenby'the shaft ofthe motor, j

means detachably'couplingthe member and the element wherebyy the latter is driven by the former for operating the gearmean's-.and `throwing the `switchy point, said driving member being axially movable Y a I tension'ed device forfholding then drivinglmember coupled tothe driven member,and'means carried byjand operativewiththemotorfshaft and jhaving connections with the *driving member Y and actuated Ythrough centrifugal force to sever the coupling meanszagainst the 'throwingthe switchpoint y 14. In 'a motor *driven fmec'hanism "for switche's,:a switch point,y a driven element, a lever having .connections with the Lswitch point, gear means operated ,by the @driven element, said gear meanshaving anleccentricand strap connection with the lever, a

'motor, a revoluble drivingfmember connected to 'and driven bythe shaft of themotor,

' means detachably -coupling'the memberand "the element wherebyjthe latter'is driven by the former for operatingthe gearmeans and 4throwing the.v switch point,A saidY driving member being axially movable, a tensioned device forholdingthe" driving meinber'convpled to the driven'membenandmeans carried by and operative with the "motor .shaft and having connections with ythe driving ,member and actuated ,through centrifugal` "force to sever-the coupling vmeans against adapted to register with a ypartof saidten- 'rtric and stra sioned device at the time theswitch point Y will have beenv completely thrown, whereby said vcoupling means maybe severed. l

n l5. In aV ymotor drivenmechanism for switches, a switch point,=;a -driven elementen. lever having connections 'with the keswvitch point, gear ,means operated .by @the @driven element, saidf gear :means having gan fecCreIlmotor, I a revo ulble driving vmember connectfedfto/and drivenbyathefshafftsof the motor, y y means detachably coupling itheememlberi-and the element whereby the latterfqisfdriven by y the former :for :operatingth-e; gear imeans Vand .throwing .the switch 'pOint, f-ssid'ldrivn member beingy axially movable, liaitensione device for holdingfthe driving ime-mber coupled to the driven element, :and imeansfcari ried by land operative` with :the-motor isha-ft and having connections with ther-driving jmembeirgsand actuated `through centrifugal force to -sever the: coupling :means against the 'a ction ofthe tension device subsequently to throwing the switch point, and a revoluble yholding member forming :an link insaid gear 'means yand-f operativersin@thezpathiofg the ='-tension device, said holdingfsmenifber rim-ving a- 4pair :of notchespeither ione lof which gis .rada'ptedato register fwrth afpaiit fof :said atenysion devicey 'at the .time the switch point fwill havebeen f completely jfthifown, iwherebv *,said couplin'gfmeans fmaybeisevered, fand eleotijcal means in -circuit 7`withthe motor and lthe electrical energy fof V1a l car :for noperatingthe rinotor ffor aperiod of comparatively short lduration for temporarily actuating fsaid l driving member. A i f connection with ithe ;ilgeverrqa 16. In a motor driven mechanism #for switches, a'switch-pommesdriven element, a i v lever having yieldableconnections fwiththe switch point, reducingpge'ar i-me'ans between' and connecting the element and the. lever, a

revoluble and laxially movabledniving member, meansdetachablyrcoupling the/member land-the el ement, whereby the latterlisftlriven by' the former, electric'motor, means-couibs pling 'the shaft of the motor 'Iand'the ffdrivy ing member andf'provided fwitheeiitnifugally,

actuateddevices loosely connected "itc the ydriving member '--for axiallymovingthesame for severing. said iirst: coupling meanslsubsequently tolthrowing thefswitch. *i '17." In a moton'driven mechanism'v for switches, afswitch point, a driven-element, a llever having f yieldable connections with ,fthe yswitch point, reducing f'gear means Ibetween and connecting the element and flever,

`arevoluble and axially movable fdrivingV --member, means detachably- 'coupling fthe menil'ier and the element, -fwherebythellatter is drivenY bythe former, anelectricm'otOl',

meanscoupling the-shaft .of the '-niojtorsind the driving member-and provided `with een-k Itr'iiugally Yactuated devicesdoosely l:connected to the driving `member for axially moving the' same for severing said first coupling means subsequently to throwing the yswitchf; "'a tension device against the actionof which said kdrivingrmemloeris axially moved, a revoluble holding memberv forming-a link in' said gear means-said holdinginember Yhaving a pair of diametrically opposed Qnotches, l either one .otwhich is adapted to g means between5 and. .connecting the v element j pletelythrown. w -f y l f V18. wIna mechanism foi-throwing switches, a switch point, a revoluble driven element, 15Vl register with apart of said .device to allow itto be koperated against itsv `tensior'nng means, wlienthe switch point has'been 'com-r me'ansbetween and; connecting. the element ugally forfmoving 'thefy member axially whereby'said coupling meansymay .be Ysev- 19. i In a mechanism'or throwingswitches,

alswitchapoint', a revoluble driven element,

ifandthe point," revoluble vrand axially movable member,` means:V vseverably couplin'gfthe member' and the element whereby 'the latter f f is f1 driven by the vformer, `:and lmeansscarried yby *said* membergiand' being actuated V cen-L i. i triffugally for moving f the: L meinber,N axially whereby said' couplingV means maybe sev-f; f ered,f1and ia spring, tensioned device against the actionzot: which? said member is axially` moved, and means to permit said device to '-f `1 'be"actuatedxr` i, Q Y .Y z20.flnamechanismfonthrowing switches, i a- Switchpoint, a:revoliiblegv)dr-Vivenl element,

40 f i and the point, a revoluble and axially mov y able member, means severablycoupling the c Ymember andthe element, whereby the lat-f. "terfis driven by thelformen'. a spring teni sioned device for; maintaining g tlie coupling means between and connecting: the element :means positive, `means' carried `by said', mem-` :ber:` and -having oiitwardl-y,,centriiugally` operating devices connected; to Vand *moving V said member axially, `tv hereby said oupling I a.ction} $f`l 21, Inamechanismfor tlirvOWIliSWrithSks meansamay be severedagaiinst-t a switch point, a.V reifol'ub leiV driven`Y element, means l' between and, connecting the 'element andthe point, a revoluble and Vaxially mov-V able member, k means severably couplingthe member; and the element, wherebyrthe latter `is y driven by the' former, a spring tension'ed.

w device for maintaining the couplinjmeansf Y er and "i havingz outwardly. centrifugally operating positive, means earriedsbyl said mem devices. connected to andrmoving jsaid memy ber'raxially, whereby said `coupling Vmeans may be severed against the action of the tensioning device, means to permit the spring tensionedvdevice to beractuat'ed', and an elecy..t;ric. motorihavingits shaftY coupled to the i member by the' means .carryingnsaid centrifugally1 operating.devices,f and being in cir- LAcuit andjoperated by theelectrical energy yof a car for ai period of comparatively short duration` to operatefthe member correspond-A ingly.V t

:22, YIna mechanis'mfor throwing switches, a revolnbledriven element, a driving member, 'meansdetachablycoupling the .member and thefelement, whereby the latter may be driven by the former, aY switch point, connections between the switch vpoint and the element, means carried by the driving mem- Ubergand, being centrififgally actuated for springgneans tensioning said device, aholdling` member. forminga link in said connections, Lsaid holding member together with the tensionottlie 'spring lI'neans actingy to s'nectifons betweenfthe switch point rand the element, andy amecha'm'sm formingA alink in said. gear connection. for renderingy the .connecting meansbetween the Vmember andy ,thefelement positive ,and `impositive alternately,, whereby l `upon the 'Aimpositive connection, said connecting vmeans may be severedfby the severingcmeans. ,y f V c fQfLln .amechanism for th owing switches,

av switch' point, t a revolublev driven element,

gear connections and means connecting the I elemefltfand the switch point, a driving mema'ndtheelement,1wherebythe latter is driven by'.the;,formenIk a device forholding ysaid .membenand the element detachably coupled, andmeansvcoperating with'th'e device to ffpreventiprematnre separatinghof the coupling means.` 4

In testinlqyV TWheier I] inve signed my nameto ythis`spe`c1 ication in the presence of two subscribingwitnesses.

K A S.

j Gmini A. Ilmos,

` ilrPLEY; y

severing saidu coupling means, a device,

hold Vthefcoupling means positively conber, means' detachably coupling the'member Copies of this patent may be obtained for lvefcentsubli, addressing the Gommii'siener o! ratents, i 

